Question: Who is the son of Piero the Unfortunate?
Paraphrase: Who is the child of Piero the Unfortunate?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q262212 wdt:P3373 ?X . ?X wdt:P22 ?answer}
Answer: Lorenzo de' Medici, Lorenzo de' Medici, Lorenzo de' Medici, Lorenzo de' Medici, Lorenzo de' Medici